Pedrollo 4PD Series 4-Inch Submersible Motors
High-quality submersible motors manufactured with premium AISI 316 and DUPLEX materials for a long service life.
Motor Description
The design and manufacturing of these 4-inch submersible motors in an oil bath are the result of extensive industry experience and the selection of the highest quality materials. They guarantee high functional performance, superior quality, and a long service life with no maintenance required.
Technical Data
- 2 poles, 60 Hz (n ≈ 3450 min⁻¹)
- Voltage: Single-phase 220 V, Three-phase 380 V
- Power: 0.37 to 7.5 kW
- Continuous service S1
- Insulation class F and IP 68 protection
Available upon request: Different voltage or frequency options.
Construction Features
- Submersible motors in a non-toxic oil bath, rewindable.
- Casing: AISI 316 stainless steel.
- Coupling dimensions according to NEMA standard.
- Shaft: DUPLEX stainless steel.
Included accessories: Power cable: 2 m for powers from 0.37 to 2.2 kW; 3.6 m for powers from 3 to 7.5 kW.
The DUPLEX stainless steel is known for its exceptional mechanical resistance, double that of AISI 304/316L steels.
Corrosion Protection: A sacrificial anode, made from a special zinc and aluminum alloy "cadmium-free" suitable for contact with drinking water, is easily applied to the lower end of the 4PD motors to protect them from corrosion in the presence of stray currents or particularly aggressive waters, significantly increasing the service life of the motor and pump components.
Performance Data - Single-phase Versions (220 V / 60 Hz)
| Type | Nominal Power (P2) | Nominal Power (HP) | Revs. (N) min⁻¹ | Nominal Current (A) | Starting Current (A) | Power Factor (cos φ) | Capacitor (VL=450V) μF | h2 | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 4PDm/0.50 | 0.37 | 0.50 | 3450 | 2.7 | 0.95 | 20 | 331 | 7.5 | |
| 4PDm / 0.75 | 0.55 | 0.75 | 3420 | 2.1 | 0.94 | 25 | 331 | 7.7 | |
| 4PDm/1 | 0.75 | 1 | 3435 | 2.4 | 0.94 | 35 | 356 | 8.9 | |
| 4PDm / 1.5 | 1.1 | 1.5 | 2000 | 3425 | 2.5 | 0.93 | 40 | 396 | 10.6 |
| 4PDm/2 | 1.5 | 2 | 3445 | 2.6 | 0.90 | 60 | 437 | 12.6 | |
| 4PDm/3 | 2.2 | 3 | 3425 | 2.9 | 0.92 | 75 | 492 | 14.9 | |
| 4PDm/5.5 | 4 | 5.5 | 5000 | 3465 | 3.5 | 0.91 | 250/300 | 800 | 30.0 |
Performance Data - Three-phase Versions (380 V / 60 Hz)
| Type | Nominal Power (P2) | Nominal Power (HP) | Revs. (N) min⁻¹ | Nominal Current (A) | Starting Current (A) | Power Factor (cos φ) | h2 | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 4PD/0.50 | 0.37 | 0.50 | 3455 | 3.4 | 0.79 | 331 | 7.5 | |
| 4PD / 0.75 | 0.55 | 0.75 | 3450 | 3.3 | 0.68 | 331 | 7.7 | |
| 4PD/1 | 0.75 | 1 | 3460 | 3.7 | 0.61 | 356 | 8.8 | |
| 4PD/1.5 | 1.1 | 1.5 | 2000 | 3440 | 3.5 | 0.72 | 371 | 9.4 |
| 4PD/2 | 1.5 | 2 | 3445 | 3.5 | 0.76 | 396 | 10.6 | |
| 4PD/3 | 2.2 | 3 | 3430 | 3.2 | 0.73 | 437 | 12.5 | |
| 4PD/5.5 | 4 | 5.5 | 3440 | 4.1 | 0.78 | 505 | 16.3 | |
| 4PD/7.5 | 5.5 | 7.5 | 5000 | 3450 | 4.2 | 0.80 | 590 | 20.1 |
| 4PD/10 | 7.5 | 10 | 3440 | 4.2 | 0.81 | 800 | 29.5 |
Current Consumption
Single-phase (220 V)
| Type | Service Factor | Nominal Current (A) | Current at Service Factor (A) |
|---|---|---|---|
| 4PDm/0.50 | 1.6 | 3.4 A | 4.2 A |
| 4PDm/0.75 | 1.5 | 4.7 A | 6.8 A |
| 4PDm/1 | 1.4 | 6.3 A | 8.1 A |
| 4PDm/1.5 | 1.3 | 8.3 A | 10.8 A |
| 4PDm/2 | 1.25 | 10.8 A | 13.5 A |
| 4PDm/3 | 1.15 | 15.5 A | 16.6 A |
| 4PDm/5 | 1.15 | 26.2 A | 30.8 A |
Three-phase (380 V)
| Type | Service Factor | Nominal Current (A) | Current at Service Factor (A) |
|---|---|---|---|
| 4PD/0.50 | 1.6 | 2.0 A | 2.9 A |
| 4PD/0.75 | 1.5 | 3.2 A | 4.1 A |
| 4PD/1 | 1.4 | 4.5 A | 5.3 A |
| 4PD/1.5 | 1.3 | 6.7 A | 7.4 A |
| 4PD/2 | 1.25 | 6.8 A | 8.2 A |
| 4PD/3 | 1.15 | 9.6 A | 10.6 A |
| 4PD/5.5 | 1.15 | 16.5 A | 18.4 A |
| 4PD/7.5 | 1.15 | 21.9 A | 25.1 A |
| 4PD/10 | 1.15 | 28.1 A | 31.4 A |
Operating Limits
- Liquid temperature up to +40 °C
- Operating depth up to 200 m below water level
- Starts per hour: max 20 with regular intervals
- Minimum cooling flow: 8 cm/s
